Watch Castle Season 8 Episode 4 online via TV Fanatic with over 6 options to watch the Castle S8E4 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
|YouTube Purchase||Watch Now|
|Google Play||Watch Now|
|Verizon On Demand||Watch Now|
On Castle Season 8 Episode 4, when Castle discovers that his idol, a reclusive author has turned up dead, he and Beckett investigate but uncover strange secrets.